To your printer not a printers Wifi, and supports USB, your may be able to share it on your Wifi networks via the USB port on the transmitter on AirPort a Time Capsule, AirPort Extreme, or AirPort Express. View Use of a USB port on the AirPort the Time Capsule, an AirPort of Extreme, the AirPort Express and Using USB printers on your AirPort networks.

Make sure before you start

Your know the Wifi network names (SSID) and password.

If Wifi networks has access constraints such as MAC address filtering, your must add the address to a transmitter Mac the AirPort printers via the AirPort Utility ( located in / Applications / Utilities ).

Important :

Article does not explain every possibility that may happen to all Wifi printers.Specific steps for adding a Wifi printers to a Wifi networks vary from one vendor to another vendors. your should see documentation that came with your printer for special description, or contact printers manufacturer for assistance.